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All results from a given calculation for B2H6 (Diborane)

using model chemistry: HSEh1PBE/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at HSEh1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-53.215904
Energy at 298.15K-53.221756
HF Energy-53.215904
Nuclear repulsion energy32.181969
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HSEh1PBE/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 2616 2516 0.00 311.19 0.06 0.12
2 Ag 2189 2105 0.00 87.76 0.05 0.09
3 Ag 1190 1144 0.00 6.25 0.64 0.78
4 Ag 819 787 0.00 18.63 0.14 0.24
5 Au 849 817 0.00 0.00 0.00 0.00
6 B1g 2693 2590 0.00 117.80 0.75 0.86
7 B1g 930 895 0.00 0.39 0.75 0.86
8 B1u 2036 1958 3.82 0.00 0.00 0.00
9 B1u 980 943 21.14 0.00 0.00 0.00
10 B2g 1890 1818 0.00 3.51 0.75 0.86
11 B2g 897 863 0.00 0.03 0.75 0.86
12 B2u 2708 2605 160.55 0.00 0.00 0.00
13 B2u 916 881 0.03 0.00 0.00 0.00
14 B2u 333 320 17.29 0.00 0.00 0.00
15 B3g 994 956 0.00 5.59 0.75 0.86
16 B3u 2602 2503 141.68 0.00 0.00 0.00
17 B3u 1718 1653 407.91 0.00 0.00 0.00
18 B3u 1181 1136 61.74 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 13770.1 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 13244.1 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HSEh1PBE/aug-cc-pVTZ
ABC
2.67713 0.61791 0.56779

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-cc-pVTZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.874 0.000 0.000
B2 -0.874 0.000 0.000
H3 0.000 0.000 0.982
H4 0.000 0.000 -0.982
H5 1.453 1.039 0.000
H6 1.453 -1.039 0.000
H7 -1.453 1.039 0.000
H8 -1.453 -1.039 0.000

Atom - Atom Distances (Å)
  B1 B2 H3 H4 H5 H6 H7 H8
B11.74821.31481.31481.18961.18962.54882.5488
B21.74821.31481.31482.54882.54881.18961.1896
H31.31481.31481.96432.03862.03862.03862.0386
H41.31481.31481.96432.03862.03862.03862.0386
H51.18962.54882.03862.03862.07822.90643.5730
H61.18962.54882.03862.03862.07823.57302.9064
H72.54881.18962.03862.03862.90643.57302.0782
H82.54881.18962.03862.03863.57302.90642.0782

picture of Diborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 H3 B2 83.340 B1 H4 B2 83.340
H3 B1 H4 96.660 H3 B1 H5 108.884
H3 B1 H6 108.884 H3 B2 H4 96.660
H3 B2 H7 108.884 H3 B2 H8 108.884
H4 B1 H5 108.884 H4 B1 H6 108.884
H4 B2 H7 108.884 H4 B2 H8 108.884
H5 B1 H6 121.739 H7 B2 H8 121.739
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.042      
2 B -0.042      
3 H 0.127      
4 H 0.127      
5 H -0.042      
6 H -0.042      
7 H -0.042      
8 H -0.042      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.833 0.000 0.000
y 0.000 -17.863 0.000
z 0.000 0.000 -14.807
Traceless
 xyz
x -2.498 0.000 0.000
y 0.000 -1.043 0.000
z 0.000 0.000 3.541
Polar
3z2-r27.082
x2-y2-0.970
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.984 0.000 0.000
y 0.000 4.879 0.000
z 0.000 0.000 4.215


<r2> (average value of r2) Å2
<r2> 33.059
(<r2>)1/2 5.750